From 52ccdcf2fd41fd7d75ab9bc6b1288b31adf76aa3 Mon Sep 17 00:00:00 2001 From: Wenzhuo Lu Date: Tue, 29 Jun 2021 10:29:20 +0800 Subject: [PATCH] net/ice: add AVX2 offload Tx Add a specific path for TX AVX2. In this path, support the HW offload features, like, checksum insertion, VLAN insertion. This path is chosen automatically according to the configuration. 'inline' is used, then the duplicate code is generated by the compiler. Signed-off-by: Wenzhuo Lu Acked-by: Leyi Rong --- drivers/net/ice/ice_rxtx.c | 37 +++++++++++++------- drivers/net/ice/ice_rxtx.h | 2 ++ drivers/net/ice/ice_rxtx_vec_avx2.c | 54 +++++++++++++++++++++-------- 3 files changed, 65 insertions(+), 28 deletions(-) diff --git a/drivers/net/ice/ice_rxtx.c b/drivers/net/ice/ice_rxtx.c index 20352b07af..c6aa326e4f 100644 --- a/drivers/net/ice/ice_rxtx.c +++ b/drivers/net/ice/ice_rxtx.c @@ -3288,7 +3288,7 @@ ice_set_tx_function(struct rte_eth_dev *dev) #ifdef RTE_ARCH_X86 struct ice_tx_queue *txq; int i; - int tx_check_ret = 0; + int tx_check_ret = -1; if (rte_eal_process_type() == RTE_PROC_PRIMARY) { ad->tx_use_avx2 = false; @@ -3307,13 +3307,14 @@ ice_set_tx_function(struct rte_eth_dev *dev) PMD_DRV_LOG(NOTICE, "AVX512 is not supported in build env"); #endif - if (!ad->tx_use_avx512 && tx_check_ret == ICE_VECTOR_PATH && - (rte_cpu_get_flag_enabled(RTE_CPUFLAG_AVX2) == 1 || - rte_cpu_get_flag_enabled(RTE_CPUFLAG_AVX512F) == 1) && - rte_vect_get_max_simd_bitwidth() >= RTE_VECT_SIMD_256) + if (!ad->tx_use_avx512 && + (rte_cpu_get_flag_enabled(RTE_CPUFLAG_AVX2) == 1 || + rte_cpu_get_flag_enabled(RTE_CPUFLAG_AVX512F) == 1) && + rte_vect_get_max_simd_bitwidth() >= RTE_VECT_SIMD_256) ad->tx_use_avx2 = true; - if (!ad->tx_use_avx512 && tx_check_ret == ICE_VECTOR_OFFLOAD_PATH) + if (!ad->tx_use_avx2 && !ad->tx_use_avx512 && + tx_check_ret == ICE_VECTOR_OFFLOAD_PATH) ad->tx_vec_allowed = false; if (ad->tx_vec_allowed) { @@ -3331,6 +3332,7 @@ ice_set_tx_function(struct rte_eth_dev *dev) } if (ad->tx_vec_allowed) { + dev->tx_pkt_prepare = NULL; if (ad->tx_use_avx512) { #ifdef CC_AVX512_SUPPORT if (tx_check_ret == ICE_VECTOR_OFFLOAD_PATH) { @@ -3339,6 +3341,7 @@ ice_set_tx_function(struct rte_eth_dev *dev) dev->data->port_id); dev->tx_pkt_burst = ice_xmit_pkts_vec_avx512_offload; + dev->tx_pkt_prepare = ice_prep_pkts; } else { PMD_DRV_LOG(NOTICE, "Using AVX512 Vector Tx (port %d).", @@ -3347,14 +3350,22 @@ ice_set_tx_function(struct rte_eth_dev *dev) } #endif } else { - PMD_DRV_LOG(DEBUG, "Using %sVector Tx (port %d).", - ad->tx_use_avx2 ? "avx2 " : "", - dev->data->port_id); - dev->tx_pkt_burst = ad->tx_use_avx2 ? - ice_xmit_pkts_vec_avx2 : - ice_xmit_pkts_vec; + if (tx_check_ret == ICE_VECTOR_OFFLOAD_PATH) { + PMD_DRV_LOG(NOTICE, + "Using AVX2 OFFLOAD Vector Tx (port %d).", + dev->data->port_id); + dev->tx_pkt_burst = + ice_xmit_pkts_vec_avx2_offload; + dev->tx_pkt_prepare = ice_prep_pkts; + } else { + PMD_DRV_LOG(DEBUG, "Using %sVector Tx (port %d).", + ad->tx_use_avx2 ? "avx2 " : "", + dev->data->port_id); + dev->tx_pkt_burst = ad->tx_use_avx2 ? + ice_xmit_pkts_vec_avx2 : + ice_xmit_pkts_vec; + } } - dev->tx_pkt_prepare = NULL; return; } diff --git a/drivers/net/ice/ice_rxtx.h b/drivers/net/ice/ice_rxtx.h index 86b6f3dcc0..f0536f7d9c 100644 --- a/drivers/net/ice/ice_rxtx.h +++ b/drivers/net/ice/ice_rxtx.h @@ -255,6 +255,8 @@ uint16_t ice_recv_scattered_pkts_vec_avx2(void *rx_queue, uint16_t nb_pkts); uint16_t ice_xmit_pkts_vec_avx2(void *tx_queue, struct rte_mbuf **tx_pkts, uint16_t nb_pkts); +uint16_t ice_xmit_pkts_vec_avx2_offload(void *tx_queue, struct rte_mbuf **tx_pkts, + uint16_t nb_pkts); uint16_t ice_recv_pkts_vec_avx512(void *rx_queue, struct rte_mbuf **rx_pkts, uint16_t nb_pkts); uint16_t ice_recv_pkts_vec_avx512_offload(void *rx_queue, diff --git a/drivers/net/ice/ice_rxtx_vec_avx2.c b/drivers/net/ice/ice_rxtx_vec_avx2.c index 165bc1bb9d..b72946b1fa 100644 --- a/drivers/net/ice/ice_rxtx_vec_avx2.c +++ b/drivers/net/ice/ice_rxtx_vec_avx2.c @@ -769,30 +769,32 @@ ice_recv_scattered_pkts_vec_avx2(void *rx_queue, struct rte_mbuf **rx_pkts, rx_pkts + retval, nb_pkts); } -static inline void +static __rte_always_inline void ice_vtx1(volatile struct ice_tx_desc *txdp, - struct rte_mbuf *pkt, uint64_t flags) + struct rte_mbuf *pkt, uint64_t flags, bool offload) { uint64_t high_qw = (ICE_TX_DESC_DTYPE_DATA | ((uint64_t)flags << ICE_TXD_QW1_CMD_S) | ((uint64_t)pkt->data_len << ICE_TXD_QW1_TX_BUF_SZ_S)); + if (offload) + ice_txd_enable_offload(pkt, &high_qw); __m128i descriptor = _mm_set_epi64x(high_qw, pkt->buf_iova + pkt->data_off); _mm_store_si128((__m128i *)txdp, descriptor); } -static inline void +static __rte_always_inline void ice_vtx(volatile struct ice_tx_desc *txdp, - struct rte_mbuf **pkt, uint16_t nb_pkts, uint64_t flags) + struct rte_mbuf **pkt, uint16_t nb_pkts, uint64_t flags, bool offload) { const uint64_t hi_qw_tmpl = (ICE_TX_DESC_DTYPE_DATA | ((uint64_t)flags << ICE_TXD_QW1_CMD_S)); /* if unaligned on 32-bit boundary, do one to align */ if (((uintptr_t)txdp & 0x1F) != 0 && nb_pkts != 0) { - ice_vtx1(txdp, *pkt, flags); + ice_vtx1(txdp, *pkt, flags, offload); nb_pkts--, txdp++, pkt++; } @@ -802,18 +804,26 @@ ice_vtx(volatile struct ice_tx_desc *txdp, hi_qw_tmpl | ((uint64_t)pkt[3]->data_len << ICE_TXD_QW1_TX_BUF_SZ_S); + if (offload) + ice_txd_enable_offload(pkt[3], &hi_qw3); uint64_t hi_qw2 = hi_qw_tmpl | ((uint64_t)pkt[2]->data_len << ICE_TXD_QW1_TX_BUF_SZ_S); + if (offload) + ice_txd_enable_offload(pkt[2], &hi_qw2); uint64_t hi_qw1 = hi_qw_tmpl | ((uint64_t)pkt[1]->data_len << ICE_TXD_QW1_TX_BUF_SZ_S); + if (offload) + ice_txd_enable_offload(pkt[1], &hi_qw1); uint64_t hi_qw0 = hi_qw_tmpl | ((uint64_t)pkt[0]->data_len << ICE_TXD_QW1_TX_BUF_SZ_S); + if (offload) + ice_txd_enable_offload(pkt[0], &hi_qw0); __m256i desc2_3 = _mm256_set_epi64x @@ -833,14 +843,14 @@ ice_vtx(volatile struct ice_tx_desc *txdp, /* do any last ones */ while (nb_pkts) { - ice_vtx1(txdp, *pkt, flags); + ice_vtx1(txdp, *pkt, flags, offload); txdp++, pkt++, nb_pkts--; } } -static inline uint16_t +static __rte_always_inline uint16_t ice_xmit_fixed_burst_vec_avx2(void *tx_queue, struct rte_mbuf **tx_pkts, - uint16_t nb_pkts) + uint16_t nb_pkts, bool offload) { struct ice_tx_queue *txq = (struct ice_tx_queue *)tx_queue; volatile struct ice_tx_desc *txdp; @@ -869,11 +879,11 @@ ice_xmit_fixed_burst_vec_avx2(void *tx_queue, struct rte_mbuf **tx_pkts, if (nb_commit >= n) { ice_tx_backlog_entry(txep, tx_pkts, n); - ice_vtx(txdp, tx_pkts, n - 1, flags); + ice_vtx(txdp, tx_pkts, n - 1, flags, offload); tx_pkts += (n - 1); txdp += (n - 1); - ice_vtx1(txdp, *tx_pkts++, rs); + ice_vtx1(txdp, *tx_pkts++, rs, offload); nb_commit = (uint16_t)(nb_commit - n); @@ -887,7 +897,7 @@ ice_xmit_fixed_burst_vec_avx2(void *tx_queue, struct rte_mbuf **tx_pkts, ice_tx_backlog_entry(txep, tx_pkts, nb_commit); - ice_vtx(txdp, tx_pkts, nb_commit, flags); + ice_vtx(txdp, tx_pkts, nb_commit, flags, offload); tx_id = (uint16_t)(tx_id + nb_commit); if (tx_id > txq->tx_next_rs) { @@ -905,9 +915,9 @@ ice_xmit_fixed_burst_vec_avx2(void *tx_queue, struct rte_mbuf **tx_pkts, return nb_pkts; } -uint16_t -ice_xmit_pkts_vec_avx2(void *tx_queue, struct rte_mbuf **tx_pkts, - uint16_t nb_pkts) +static __rte_always_inline uint16_t +ice_xmit_pkts_vec_avx2_common(void *tx_queue, struct rte_mbuf **tx_pkts, + uint16_t nb_pkts, bool offload) { uint16_t nb_tx = 0; struct ice_tx_queue *txq = (struct ice_tx_queue *)tx_queue; @@ -917,7 +927,7 @@ ice_xmit_pkts_vec_avx2(void *tx_queue, struct rte_mbuf **tx_pkts, num = (uint16_t)RTE_MIN(nb_pkts, txq->tx_rs_thresh); ret = ice_xmit_fixed_burst_vec_avx2(tx_queue, &tx_pkts[nb_tx], - num); + num, offload); nb_tx += ret; nb_pkts -= ret; if (ret < num) @@ -926,3 +936,17 @@ ice_xmit_pkts_vec_avx2(void *tx_queue, struct rte_mbuf **tx_pkts, return nb_tx; } + +uint16_t +ice_xmit_pkts_vec_avx2(void *tx_queue, struct rte_mbuf **tx_pkts, + uint16_t nb_pkts) +{ + return ice_xmit_pkts_vec_avx2_common(tx_queue, tx_pkts, nb_pkts, false); +} + +uint16_t +ice_xmit_pkts_vec_avx2_offload(void *tx_queue, struct rte_mbuf **tx_pkts, + uint16_t nb_pkts) +{ + return ice_xmit_pkts_vec_avx2_common(tx_queue, tx_pkts, nb_pkts, true); +} -- 2.20.1